The Duke and Duchess of Cambridge joined Queen Elizabeth, the Duke of Edinburgh, Prince of Wales and the Duke of York for the annual Order of the Garter service.
Prince William wore a traditional ceremonial robe and shared a sneaky look at his wife who was watching the ceremony at Windsor Castle.
Catherine looked elegant in a light blue Christopher Kane coat and matching hat.
The Duke and Duchess share a smile.
The Queen in a traditional ceremonial robe.
Catherine chose a light blue Christopher Kane coat and matching hat for the ceremony.
Prince Charles and Catherine.
Queen Elizabeth and the Duke of Edinburgh.
Catherine shares another smile with her husband.